密理博聚偏二氟乙烯膜GVWP04700

Millipore聚偏二氟乙烯 PVDF滤膜 0.22um GVWP04700/09050/14250

默克密理博过滤过滤膜

聚偏二氟乙烯PVDF过滤膜

millipore聚偏乙烯滤膜

默克MERCK Durapore膜过滤装置 0.22 um 货号GVWP09050议价